Granted Patent
Utility
US 4,952,470 · App. 07/180,816
Electrophotographic photosensitive member
Inventors:
Kiyoshi Tamaki, Koichi Kudoh, Yoshihiko Etoh, Yoshiaki Takei
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Apr 21, 1988
Inventors
Kiyoshi Tamaki
Koichi Kudoh
Yoshihiko Etoh
Yoshiaki Takei
Assignee (at issue)
Konica Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.